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Finding the Fourth Proportional to 66,290.26, 91,480.56 and 36,482.26

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Solution

The fourth proportional to 66,290.26, 91,480.56 and 36,482.26 is: 50,345.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.26 : 91,480.56 = 36,482.26 : x
  2. Step 2: Convert to fraction form
    66,290.26/91,480.56 = 36,482.26/x
  3. Step 3: Cross multiply
    66,290.26x = 91,480.56 × 36,482.26
  4. Step 4: Simplify right side
    66,290.26x = 3,337,417,574.87
  5. Step 5: Solve for x
    x = 3,337,417,574.87/66,290.26
  6. Step 6: Final answer
    x = 50,345.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.